Brown Adipose Tissue Prevalence Is Lower in Obesity but Its Metabolic Activity Is Intact. - Kulterer OC; Herz CT; Prager M; Schmöltzer C; Langer FB; Prager G; Marculescu R; Kautzky-Willer A; Hacker M; Haug AR; Kiefer FW (Frontiers in endocrinology, 2022)